Message Board for PC version

What do the mysterious set items do? I've found the bucket and the token but not the 3rd piece, and what does quit from vex mean? Is it an anagram?What does the mysterious teleporter stone do? It's the item dropped by the random squeaky thief character with a green aura around it's feet. The inscription on the stone read backwards says: columnarius sectorius. Does this mean anything, and how & where do you use the stone?